欢迎来到天天文库
浏览记录
ID:52354771
大小:1.48 MB
页数:7页
时间:2020-03-26
《多孔氧化铜空心微球的一步法制备及其光催化性能.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第28卷第5期无机化学学报Vol_28No.52012年5月CHINESEJ0URNALOFINORGANICCHEMISTRY1043.1049多孑L氧化铜空心微球的一步法制备及其光催化性能邵谦王小杰葛圣松王凌云杨小琨f山东科技大学化学与环境工程学院,青岛2665901摘要:采用一步法成功制备出多孔氧化铜空心微球,用SEM、XRD和FTIR对制得的样品进行了表征。研究发现,碳源、反应温度、反应时间、CuSO浓度等实验条件在多孔微球的制备过程中起着重要作用。在实验结果的基础上,提出了多孑L氧化铜空心微球的形成机理。制备的多孔氧化铜空心微球的比表面积为409m2~g~,平均孔径为3.15n
2、m,总孔体积为0.256cm3~g-’,这种空心微球具有量子尺寸效应并对罗丹明B有较高的光催化性能。关键词:CuO;空心球;金属氧化物;催化性能中图分类号:0614.12文献标识码:A文章编号:1001.4861(2012)05—1043—07PorousCuOHollowMicrospheres:One-StepPreparationandPhotocatalyticPerformanceSHAOQianWANGXiao—JieGESheng-SongWANGLing-YunYANGXiao—Kun(CollegeofChemicalandEnvironmentalEngineerin
3、g,ShandongUniversityofScience&Technology,Qingdao。Shandong266590,China)Abstract:Porouscopperoxide(CuO)hollowmicrosphereswerefabricatedviaaone-stepmethod.TheproductsWerecharacterizedbySEM,XRDandFlaIR.Thecarbonsource,hydrothermaltemperatureandtimeandtheconcentrationofCuSO4playcrucialrolesincontrolli
4、ngthemorphologyofthetitlemateria1.Aformationmechanismwasproposedbasedonthecharacterizationresults.TheBETspecificsurfaceareaofthehollowspheresis409m2~g~,theaverageporesizeis3.15nm,andthetotalporevolumeis0.256am3~g~.ThematerialexhibitsaquantumsizeeffectinUVspectrumandhigherphotocatalyticactivityfor
5、degradationofrhodamineB(RhB)aqueoussolution.Keywords:CuO;hollowmicrospheres;metaloxides;catalysis0Introductionattractedagreatdealofattentionduetoitspromisingapplicationincatalysis,gassensingsolarenergyHollowmicro/nanostructureshaverecentlyCOnversion嘲.andlithiumionbatteriesaselectrodes[~.becomeone
6、ofthehotresearchtopicsowingtotheirInrecentyears,aseriesofCuOnanomaterialswithuniqueandsuperiorperformances.Thehollowvariousmorphologieshavebeenobtained,suchasstructureshavehighspecificsurfaceareaandlowspheres阎,flowers[91,nanowiresnanosheetsanddensity,andcouldbebeneficialforapplicationinthenanowhi
7、skers!nanoplateletsnanorodsandfieldssuchascatalysis,photoelectricity,andbranches[131。dandelions[4],andhollowstructures[一9],biomedicine[~.amongwhichthehollowspheresexhibituniqueAsanimportantp-typesemiconductor,CuOhasper
此文档下载收益归作者所有